Thanks to the following people who have contributed to the Phrasebook:

• ammatsui – Defining functions, enum ranges
• Dima Kurilo – Bounded queues
• Taylor Fausak – Moments in time
• Julian Birch – Maybe
• Florian Beeres – Records with optics
• Yuras Shumovich – assistance with exception handling in monitoring.hs (1, 2)
• gutierrezje – Folding lists
• Daniel Brice – Logging